Banjo-bridge



W. POST.

BANJO BRIDGE.

APPUCATION FILED NOV. I, 1919.

1,383,752. I Patented July 5, 1921.

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ATTORNEY throughout the-several views in which they UNITED STATES PATENTOFFICE.

BANJO-BRIDGE.

Specification of Letters Patent.

Patented July 5, 1921.

Application filed November 1, 1919. Serial No. 335,130.

To all whom it may concern:

.Be it known that I, WILLIAM Posr, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Banjo-Bridges, of whichthe following is a specification.

This invention has relation to bridges for musical instruments, withparticular reference to banjo bridges, and has for an ob ect to providea bridge constructed in a manner and of a material to act in such amanner when used on an instrument as to impart greater resonance,reverberation and volume to the tone thereof. a

In addition to the foregoing, this invention comprehends improvements inthe details of construction and arrangement of parts, to be hereinafterdescribed and particularly set forth in the appendedclalm.

In the accompanying drawings in which similar and corresponding partsare desig nated by the same characters of reference cross section andhas its sides curved trans-, versely. Formed upon the ends of the bar 10are supporting legs 11 extending at right angles thereto. The legs arethicker at the base than at the point of connection with the bar 10 andthe sides are curved, forming a continuation of the curved sides of thebar 10 as would be observed from Fig. 4. It will be noted from'Fig. 8that the upper edge of the bar 10 is flat and is widest'at theintermediate portion of the bar 10 and narrowest at the ends thereof.The top surface of the bar 10 is formed with a plurality of notches 12in which the strings of the instrument are held. The bar 10 is alsoprovided with a number of transversely extending openings 13, onecentrally and two equidistantly therefrom at opposite sides of thecenter. The openings should be of the maximum size without undulyweakening the bar for the purpose of supporting the strings.

elevation of a.

The legs 11 are also bored from beneath by openings extendinglongitudinally of the 1e and at right angles to the length of the bar 10and to a distance short of the points of connection of said legs withthe bar 10. An essentlal feature of the present invention consists inthe material of which the bridge is constructed and for this purpose isused maple wood taken only from middle aged trees and only from thosetrees which grow on high and dry ground.

- Thus it will be seen that I have provided a ban o bridge which, byreason of its construction provides lightness and interferes as littleas possible with proper vibration of the It will sounding board of theinstrument. also be observed that I have discovered a method ofselecting wood from which banjo bridges may be constructed so as toprovide the greatest amount of resonance, reverberation and volume oftone.

IVhile I have illustrated and described my invention with some degree ofparticularity I realize that in practice various alterations therein maybe made. I therefore reserve the right and privilege of changing theform of the details of construction or otherwise altering thearrangement of the correlated parts without departing from the spirit ofthe invention or the scope of the appended claim.

Having thus described my invention, what I claim as new and desire tosecure by United States Letters Patent is:

A banjo bridge comprising a supporting bar which is triangular in crosssection and having its apex slightly flattened to form a surface, saidsurface being widened at the intermediate portion of the bridge and withboth edges of said surface tapering to points at the ends of thesupporting bar, said supporting bar being provided with transverseapertures, and supporting legs formed at the ends of the supporting barextending at right angles thereto, the sides of said legs beingacontinuation of the sides of the supporting bar, said supporting legsbeing bored longitudinally thereof in their underside.

In testimony whereof I afiix my signature in presence of two witnesses.

\ WILLIAM POST.

Witnesses:

GEORGE O'r'r. WILLIAM KAES'INER.

